Answer:
The maximum one-day percentage loss = -1.15%
Explanation:
Let assume that with the normal distribution, 95% of observations are smaller than 1.65 standard deviations above the mean.
Given that:
Cerra estimates the standard deviation of daily percentage changes of the euro to be 1 percent over the last 100 days.
if the expected percentage change of the euro tomorrow is 0.5 percent
and that Z value at 95% C.I level = 1.65
∵ The maximum one-day percentage loss = (expected percentage change - Z-Value) × standard deviation
The maximum one-day percentage loss = (0.5 - 1.65) × 1
The maximum one-day percentage loss = -1.15 × 1
The maximum one-day percentage loss = -1.15%